Trapezoid edema on T1 MRI

This T1-weighted, axial magnetic resonance image of the wrist shows decreased signal intensity throughout the trapezoid, when compared to the strength of the signal from the trapezium (Tm), capitate (C), and hamate (H) bones. This suggests the presence of edema consistent with microtrabecular injury. The trapezoid is the dark-appearing bone between the trapezium and capitate.